Volcano.h

Go to the documentation of this file.

/**
 * This file was automatically created with "create_c++_header.sh".
 * Do not edit manually.
 */
#pragma once
#include "../../colormap.h"
 
namespace colormap
{
    namespace IDL
    {
 
        class Volcano : public Colormap
        {
        private:
            class Wrapper : public WrapperBase
            {
            public:
#ifdef float
#error "TODO"
#endif
#define float local_real_t
#include "../../../../shaders/glsl/IDL_Volcano.frag"
#undef float
            };
 
        public:
            Color
            getColor(double x) const override
            {
                Wrapper w;
                vec4 c = w.colormap(x);
                Color result;
                result.r = std::max(0.0, std::min(1.0, c.r));
                result.g = std::max(0.0, std::min(1.0, c.g));
                result.b = std::max(0.0, std::min(1.0, c.b));
                result.a = std::max(0.0, std::min(1.0, c.a));
                return result;
            }
 
            std::string
            getTitle() const override
            {
                return std::string("Volcano");
            }
 
            std::string
            getCategory() const override
            {
                return std::string("IDL");
            }
 
            std::string
            getSource() const override
            {
                return std::string(
                    "float colormap_r1(float x) {\n"
                    "   const float pi = 3.141592653589793238462643383279502884197169399;\n"
                    "   const float a = 216.6901575438631;\n"
                    "   const float b = 1.073972444219095;\n"
                    "   const float c = 0.6275803332110022;\n"
                    "   const float d = 221.6241814852619;\n"
                    "   float v = a * sin(2.0 * pi / b * x + 2.0 * pi * c) + d;\n"
                    "   if (v < 0.0) {\n"
                    "       return -v;\n"
                    "   } else {\n"
                    "       return v;\n"
                    "   }\n"
                    "}\n"
                    "\n"
                    "float colormap_r2(float x) {\n"
                    "   const float pi = 3.141592653589793238462643383279502884197169399;\n"
                    "   const float a = 202.3454274460618;\n"
                    "   const float b = 1.058678309228987;\n"
                    "   const float c = 0.4891299991060677;\n"
                    "   const float d = -72.38173481234448;\n"
                    "   return a * sin(2.0 * pi / b * x + 2.0 * pi * c) + d;\n"
                    "}\n"
                    "\n"
                    "float colormap_red(float x) {\n"
                    "   if (x < 0.4264009656413063) {\n"
                    "       return colormap_r1(x);\n"
                    "   } else if (x < 0.6024851624202665) {\n"
                    "       const float a = (0.0 - 255.0) / (0.6024851624202665 - "
                    "0.4264009656413063);\n"
                    "       const float b = -0.6024851624202665 * a;\n"
                    "       return a * x + b;\n"
                    "   } else {\n"
                    "       return colormap_r2(x);\n"
                    "   }\n"
                    "}\n"
                    "\n"
                    "float colormap_green(float x) {\n"
                    "   const float pi = 3.141592653589793238462643383279502884197169399;\n"
                    "   const float a = 126.3856859482602;\n"
                    "   const float b = 0.6744554815524477;\n"
                    "   const float c = 0.01070628027163306;\n"
                    "   const float d = 26.95058522613648;\n"
                    "   float v = a * sin(2.0 * pi / b * x + 2.0 * pi * c) + d;\n"
                    "   if (v < 0.0) {\n"
                    "       return -v;\n"
                    "   } else {\n"
                    "       return v;\n"
                    "   }\n"
                    "}\n"
                    "\n"
                    "float colormap_blue(float x) {\n"
                    "   const float pi = 3.141592653589793238462643383279502884197169399;\n"
                    "   const float a = 126.9540413031656;\n"
                    "   const float b = 0.2891013907955124;\n"
                    "   const float c = 0.5136633102640619;\n"
                    "   const float d = 126.5159759632338;\n"
                    "   return a * sin(2.0 * pi / b * x + 2.0 * pi * c) + d;\n"
                    "}\n"
                    "\n"
                    "// R1 - 255 = 0\n"
                    "// => 0.4264009656413063\n"
                    "\n"
                    "// R2 = 0\n"
                    "// => 0.6024851624202665\n"
                    "\n"
                    "vec4 colormap(float x) {\n"
                    "   float r = clamp(colormap_red(x) / 255.0, 0.0, 1.0);\n"
                    "   float g = clamp(colormap_green(x) / 255.0, 0.0, 1.0);\n"
                    "   float b = clamp(colormap_blue(x) / 255.0, 0.0, 1.0);\n"
                    "   return vec4(r, g, b, 1.0);\n"
                    "}\n");
            }
        };
 
    } // namespace IDL
} // namespace colormap